Questions tagged [labview]
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Oscilloscope on NI Elvis II+ board is losing signal when used as VI
I'm trying to process signals using built-in oscilloscope of NI Elvis II+ and LabVIEW. Signals are coming from generator to oscilloscope input of the board.
I'm capturing signals using "NI ELVISmx ...
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28 views
Electrical device to keep circuit open once an open is detected
I'm working on a laboratory setup that has eight electric motors running at high speed. The motors are enabled by sending a 5 V enable signal from a NI DAQ setup/LabVIEW to the motor amplifiers. ...
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41 views
Calculate roots for second order equation in labview
I did this in labview but it does not work for complex root how i can make it for real and complex roots
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38 views
Controlling motor card with NI 9472 DO module
simulate this circuit – Schematic created using CircuitLab
My goal is to simply turn on/off a 24VAC Motor. It is being driven by a card that I was originally just supplying 24VDC with from an ...
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54 views
Sawtooth to Straight line in Simulink
There is a component in LabVIEW called as "Inverse Modulus".
It is used to eliminate the discontinuous jump that would occur when the DAC encoder of the hardware reaches the limits of this range.
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31 views
Labview - Active amplifier
I need to create a pulsed current variable from 0 to 20A to run solenoid with a very low resistance. Which is the best solution for you?
Right now I am trying to generate a pulsed current with ...
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75 views
16 bit VISA Write in LABView
I am trying to communicate with a LIN sensor device via a PC COM port (I built a board that converts USB to UART and then UART to LIN). The board works and I wrote a simple Matlab script to grab data ...
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241 views
Measuring current using ACS 712 with NI DAQ 9215
I am trying to measure current from Ignition coil(12V, 4.5A). i used arduino to measure current. And it worked good. And i connected the ACS712 signal pin to NI DAQ 9215. At zero current the output ...
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74 views
Holding signal true for x seconds in LabView
I'm trying to create an automatic startup override system whereby when an ESD override button is clicked, a signal will be held true for 10 seconds overriding my ESD interlocks.
This seems like there ...
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1answer
102 views
In a Generator, why when the Exciter voltage increases the Generator Voltage decreases?
I have a project where I have to build an electrical model of a generator with constant torque at 1500 RPM and simulate it in LabView.
I have a manual that describes some measurements that were made ...
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130 views
Pressure transducer being read using Labview
I understand this is not a typical question for this forum, and that NI Labview forum would be better (I posted there too), but I am hoping that someone who is proficient in Labview will see this. I ...
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323 views
How can I transmit a TTL signal to a computer?
I am designing a data acquisition system including a sensor that outputs a TTL pulse signal (3 wires: power supply, common, and signal). I am trying to determine how to send this signal to a program ...
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438 views
how to bumplessly switch between two control signals?
I have a Labview program which sends 4-20ma current signal through a ni usb device to control the speed of a motor by controlling a sew eurodrive MOVIDRIVE ® MDX60B / 61B. Here is the data sheet of ...
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197 views
Can change number of data bits in NI LabVIEW's VISA serial?
I need to send 16 bits of data through serial UART to LabVIEW. I have 16bits of data frames with 1 start bit, 1 stop bit, and 1 parity bit. Is it possible to change the number of data bits in VISA ...
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255 views
fire detection system with lm358 using arduino and labview.I want help regarding if my circuit is correct or not?VI
I'm a beginner working on this system (Link).
I build the hardware similiar to the link and I did a software implementation on Lab view as well, but only the buzzer starts when temperature is ...
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144 views
How do I obtain readings using an AD8302?
I need to use an AD 8302 Gain and Phase detector along with a SynthHD frequency generator to design a Vector Network Analyzer. Before I get to that I wanted to try and obtain readings on my PC. There ...
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245 views
LabView drivers for Keithley 6487. where to find documentation?
I have to set up a program for measuring the IV characteristics of some components using LabView.
At the time of writing I'm studying the basics of the G language (LabView programming language) for ...
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198 views
FFT in LabView using DAQ
Familiar with the FFT and LabView. Can I use LabView to compute and display the FFT of an analog signal in real-time rather than computing it from a data array?
